Question

Farmers in a particular region were concerned that premature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield?

• A. Removal of all yellow leaves and spraying the remaining green leaves with 2,4,5 - trichlorophenoxy acetic acid.
• B. Application of iron and magnesium to promote synthesis of chlorophyll.
• C. Frequent irrigaion of the crop.
• D. Treatment of the plants with cytokinins along with a small dose of nitrogenous fertilizer.

Answer 1

The correct option is D Treatment of the plants with cytokinins along with a small dose of nitrogenous fertilizer.

Treatment of plants with cytokinin plant hormone can result in the delaying of ageing of plants. Actually the plant is facing troubles which are related to senescence. Cytokinin will retard the destruction of chlorophyll, proteins, etc.